CN104472081A - Horizontal disc seed metering device - Google Patents
Horizontal disc seed metering device Download PDFInfo
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- CN104472081A CN104472081A CN201410666922.6A CN201410666922A CN104472081A CN 104472081 A CN104472081 A CN 104472081A CN 201410666922 A CN201410666922 A CN 201410666922A CN 104472081 A CN104472081 A CN 104472081A
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- seed
- box
- hole
- disc
- seed metering
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Abstract
The invention discloses a horizontal disc seed metering device, relating to the technical field of agricultural machinery. The horizontal disc seed metering device comprises a seed box, a seed metering disc, a seed scraper and a rotary shaft, wherein the seed metering disc and the seed scraper are mounted in the seed box, and the rotary shaft is connected with the seed metering disc; the rotary shaft extends out of the bottom of the seed box, a plurality of seed accommodating holes are uniformly formed in the seed metering disc, a seed metering hole is formed in the bottom of the seed box, an annular groove is formed in the bottom face of the seed metering disc, a circular-ring-shaped supporting boss which bulges upwards is arranged on the internal bottom face of the seed box and is inserted into the annular groove, and a certain distance exists between the bottom face of the seed metering disc and the internal bottom face of the seed box; each seed accommodating hole is of a conical hole with a big upper part and a small lower part, a seed receiving sleeve which is abutted against the bottom face of the seed metering disc is formed in the seed box through upwardly extending along the outer edge of the seed metering hole, and the seed accommodating holes are communicated with the seed metering hole through the seed receiving sleeve. Compared with the prior art, the horizontal disc seed metering device has the advantages that the friction of rotating between the seed metering disc and the seed box is greatly reduced, the reduction of energy consumption is facilitated, the seed filling performance of the seed accommodating holes is high, and seeding absence can be avoided.
Description
Technical field
The present invention relates to agricultural machinery technological field, especially a kind of centrifugal disc seeding unit.
Background technology
Seeding unit is one of vitals of sower, and its effect is that the seed in sower seed-box is dredged uniformly seed flow or single seed, to control seeding quantity, realizes evenly sowing.Seeding unit of a great variety, be mainly divided into strip sowing seed discharge device and hill-drop feed run, centrifugal disc seeding unit is a kind of common hill-drop feed run, and its structure is simple, is suitable for low speed sowing.Existing centrifugal disc seeding unit comprises seed-box, the seed plate be installed in seed-box, the rotating shaft connecting seed plate and the seed scraping device that is installed in seed-box, seed plate is plane disc, plane disc offers multiple columniform appearance kind of hole, a feed outlet is offered at the bottom of seed-box case, there is following deficiency in the seeding unit of this structure: 1, the bottom surface of the seed plate of flat circle disc type all contacts with seed-box inner bottom surface in rotary course, frictional force is large, consumes energy high; 2, seed flows into by conducting oneself with dignity and holds in kind of hole, columniform hold kind of hole fill kind of a poor-performing, easily cause broadcast leakage.
Summary of the invention
The object of this invention is to provide a kind of centrifugal disc seeding unit, this centrifugal disc seeding unit can solve the problem of the large and easy broadcast leakage of existing level disc type seeder pivoting friction.
In order to solve the problem, the technical solution used in the present invention is: this centrifugal disc seeding unit comprises seed-box, be arranged on the seed plate in seed-box and seed scraping device, and connect the rotating shaft of described seed plate, described rotating shaft is stretched out bottom seed-box, described seed plate circumferentially evenly offers multiple appearance kind of hole same, a feed outlet is offered at the bottom of the case of described seed-box, the center of described feed outlet is identical to the distance of described shaft axis with the center in described appearance kind hole, the bottom surface of described seed plate offers annular groove, the inner bottom surface of described seed-box arranges the support rim of the annular raised up, described support rim inserts in described annular groove, a segment distance is had between the bottom surface of described seed plate and the inner bottom surface of described seed-box, described appearance kind of a hole is up big and down small bellmouth, in described seed-box, upwards extend to form an inoculation cover abutted against with the bottom surface of described seed plate along described feed outlet outer rim, and described appearance kind hole is communicated with described feed outlet by described inoculation cover.
In the technical scheme of above-mentioned centrifugal disc seeding unit, technical scheme can also be more specifically: the internal diameter of described inoculation cover is identical with the aperture of described feed outlet, and the internal diameter of described inoculation cover is greater than an aperture for described appearance kind of hole small end.
Further, described seed scraping device is the cylindrical brush coaxial with described feed outlet, and the external diameter of described cylindrical brush is greater than the described large stomidium footpath holding kind of hole.
Further, the upper end of described support rim is arc-shaped.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, seed plate carrys out support rotating by the support rim being arranged on seed-box, significantly reduces the frictional force of rotating between seed plate and seed-box, is conducive to reducing power consumption;
2, the structure of Rong Zhongkong is conducive to raising and fills kind of a property, thus avoids broadcast leakage.
3, seed scraping device is arranged to cylindrical brush, effectively can strike off the unnecessary seed entering feed outlet, and hairbrush is soft, can not scratch seed.
Accompanying drawing explanation
Fig. 1 is this centrifugal disc seeding unit figure.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Centrifugal disc seeding unit shown in Fig. 1 mainly comprises seed-box 1, seed plate 2, bearing 3, rotating shaft 4 and seed scraping device 5, seed plate 2 is arranged in seed-box 1, the central authorities of seed plate 2 are connected with rotating shaft 4, the other end of rotating shaft 4 stretches out bottom seed-box 1, the outer bottom of seed-box 1 is provided with bearing block, be provided with two cover bearings 3 in bearing block, rotating shaft 4 is arranged on bearing block by bearing 3, the inner bottom surface of seed-box 1 arranges the support rim 1-1 of the annular raised up, the upper end of support rim 1-1 is arc-shaped, the bottom surface of seed plate 2 offers annular groove 2-1, support rim 1-1 inserts in annular groove 2-1 and is slidably connected with the recessed 2-1 groove of annular, has a segment distance between the bottom surface of seed plate 2 and the inner bottom surface of seed-box 1, seed plate 2 circumferentially evenly offers multiple appearance kind of hole 2-2 same, holding kind of a hole 2-2 is up big and down small bellmouth, a feed outlet 1-2 is offered at the bottom of the case of seed-box 1, the center of feed outlet 1-2 is identical to the distance of rotating shaft 4 axis with the center holding kind of hole 2-2, in seed-box 1, upwards extend to form an inoculation abutted against with the bottom surface of seed plate 3 along feed outlet 1-2 outer rim overlap 1-3, hold kind of hole 2-2 to be communicated with feed outlet 1-2 by inoculation cover 1-3, the internal diameter of inoculation cover 1-3 is identical with the aperture of feed outlet 1-2, the internal diameter of inoculation cover 1-3 is greater than and holds kind of an aperture for hole 3-2 small end, seed scraping device 5 is arranged in seed-box 1, and seed scraping device 5 is the cylindrical brush coaxial with feed outlet, and the external diameter of this cylindrical brush is greater than the large stomidium footpath holding kind of hole 2-2, and the bottom of hairbrush contacts with the upper surface of seed plate 2.
Claims (4)
1. a centrifugal disc seeding unit, comprise seed-box, be arranged on the seed plate in seed-box and seed scraping device, and connect the rotating shaft of described seed plate, described rotating shaft is stretched out bottom seed-box, described seed plate circumferentially evenly offers multiple appearance kind of hole same, a feed outlet is offered at the bottom of the case of described seed-box, the center of described feed outlet is identical to the distance of described shaft axis with the center in described appearance kind hole, it is characterized in that: the bottom surface of described seed plate offers annular groove, the inner bottom surface of described seed-box arranges the support rim of the annular raised up, described support rim inserts in described annular groove, a segment distance is had between the bottom surface of described seed plate and the inner bottom surface of described seed-box, described appearance kind of a hole is up big and down small bellmouth, in described seed-box, upwards extend to form an inoculation cover abutted against with the bottom surface of described seed plate along described feed outlet outer rim, and described appearance kind hole is communicated with described feed outlet by described inoculation cover.
2. centrifugal disc seeding unit according to claim 1, is characterized in that: the internal diameter of described inoculation cover is identical with the aperture of described feed outlet, and the internal diameter of described inoculation cover is greater than an aperture for described appearance kind of hole small end.
3. centrifugal disc seeding unit according to claim 1 and 2, is characterized in that: described seed scraping device is the cylindrical brush coaxial with described feed outlet, and the external diameter of described cylindrical brush is greater than the described large stomidium footpath holding kind of hole.
4. centrifugal disc seeding unit according to claim 1 and 2, is characterized in that: the upper end of described support rim is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666922.6A CN104472081A (en) | 2014-11-20 | 2014-11-20 | Horizontal disc seed metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666922.6A CN104472081A (en) | 2014-11-20 | 2014-11-20 | Horizontal disc seed metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104472081A true CN104472081A (en) | 2015-04-01 |
Family
ID=52746808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410666922.6A Pending CN104472081A (en) | 2014-11-20 | 2014-11-20 | Horizontal disc seed metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104472081A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108566802A (en) * | 2017-03-10 | 2018-09-25 | 泉州市华研机械有限责任公司 | Various seed separators |
| CN111990022A (en) * | 2020-08-25 | 2020-11-27 | 仲恺农业工程学院 | Intelligent peanut seeding equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2159652Y (en) * | 1992-07-14 | 1994-03-30 | 山东莱芜华龙机械厂 | Closed crop general precision sowing device assembly |
| CN103444324A (en) * | 2013-09-18 | 2013-12-18 | 中国农业大学 | Internal air inflation blowing type precise corn seed metering device |
| CN203435338U (en) * | 2013-07-02 | 2014-02-19 | 重庆晴点农业开发有限公司 | Seed metering device of seeding machine |
-
2014
- 2014-11-20 CN CN201410666922.6A patent/CN104472081A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2159652Y (en) * | 1992-07-14 | 1994-03-30 | 山东莱芜华龙机械厂 | Closed crop general precision sowing device assembly |
| CN203435338U (en) * | 2013-07-02 | 2014-02-19 | 重庆晴点农业开发有限公司 | Seed metering device of seeding machine |
| CN103444324A (en) * | 2013-09-18 | 2013-12-18 | 中国农业大学 | Internal air inflation blowing type precise corn seed metering device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108566802A (en) * | 2017-03-10 | 2018-09-25 | 泉州市华研机械有限责任公司 | Various seed separators |
| CN111990022A (en) * | 2020-08-25 | 2020-11-27 | 仲恺农业工程学院 | Intelligent peanut seeding equipment |
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Application publication date: 20150401 |